K&N Universal Air Filter - Round Tapered - 3in Top OD x 3.75in Base OD x 6in H x 2.438in Flange ID

K&N Universal Air Filter Round Tapered 3in x 3.75in x 6in

Upgrade engine airflow with the K&N Universal Round Tapered Air Filter. Features a 2.438in flange ID, washable cotton media, and maximum horsepower protection.

The deliver exceptional airflow and premium filtration for custom performance intakes, motor racing, and specialty engine builds.

Engineered with multiple layers of oiled cotton gauze filtration media, this high-flow clamp-on air filter allows up to 50% more airflow than standard disposable paper filters. The increased air volume directly improves throttle response, acceleration, and overall engine efficiency.

It features a durable pliable rubber flange designed to absorb engine vibration and stretch up to 1/16th of an inch (1.5mm) for a precise, leak-free seal. Built to last for the life of your vehicle or equipment, this filter is fully washable and reusable, saving money and reducing environmental waste over time.

Best Uses

1. Custom Cold Air Intakes: Ideal for custom automotive performance builds requiring a 2.438-inch clamp-on fitment.
2. Snowmobiles & Powersports: Suitable for snowmobiles, ATVs, and off-road vehicles requiring a compact tapered profile.
3. Motorsport & Racing Applications: Excellent for track cars, custom race builds, and high-RPM engines.
4. Small Industrial Equipment: Perfect for generators, small tractors, and custom power equipment setups.

Features

1. Precision Tapered Dimensions: Features a 2.438in Flange ID, 3.75in Base OD, 3in Top OD, and 6in Filter Height for compact fitment.
2. High-Flow Oiled Cotton Media: Constructed from multiple layers of woven cotton fibers treated with a specialized oil coating to capture contaminants efficiently.
3. Pliable Rubber Flange: Made with heavy-duty molded rubber that absorbs engine vibrations and stretches up to 1/16in (1.5mm) for easy mounting.
4. Clamp-On Design: Features a secure clamp-on collar mechanism for quick installation directly onto intake piping.
5. Washable & Reusable: Designed to be cleaned and re-oiled repeatedly using a K&N filter care kit.

Benefits

1. Increases Power & Acceleration: High-airflow design allows your engine to draw in more air, boosting overall torque and throttle performance.
2. Long-Term Cost Savings: Eliminates the need to repeatedly purchase single-use paper filters.
3. Superior Engine Protection: Provides high filtration efficiency to block harmful particles without restricting airflow.
4. Vibration-Resistant Seal: Flexible rubber mounting flange ensures a snug, secure fit even under heavy engine movement or rough terrain.
5. Eco-Friendly Choice: Reusable design reduces landfill waste caused by disposable air filter replacements.